Basic Astronomy

Supermoon on 10th August: closest and brightest Moon for last twenty years

8th Aug 2014: Don't forget to check our Moon on 10th August 2014. According to scientists, Sunday will see the Moon closer to Earth than it has been in the last 20 years. Naturally, we will have oppurtunity to see largest and brightest Moon within last 20 year. The Moon will reach its full perigee stage with around 221,765 miles distance from Earth for 26 minutes.

The fourth of the five Supermoon of 2014 would be visible on Sunday night. The first Supermoon of 2014 appeared on 1st January - making January the single calendar month with two Supermoon until January 2018.

The other three Supermoon of 2014 was visible on 30th January, 12th July and 9th September.

Super Moon 2013

What is a Super Moon ?

The term Supermoon came from astrologer Richard Nolle over 30 years ago in 1979. During the phenomenon, the Earth, moon and sun are all in a line, with the moon in its nearest approach to earth. Prior to 1979, Supermoon were called perigee full moon or perigee new moon.

Will the actual size of Moon will change during Super Moon?

The actual size of the Moon will not change but it will look bigger as it will be in closest distance from Earth within this year. Since the moon moves around Earth in an elliptical orbit, its precise distance from Earth varies with time depending on where it is in the orbit.

This time, the moon will enter its full phase about half hour after it passes the point in its orbit nearest to Earth (known as perigee). Due to this closeness from the Earth, this full moon will look about 30 percent brighter and 14 percent wider than it looks at the farthest point in its orbit (known as apogee). So moon will NOT be 10 times or 20 times bigger than its usual size as speculated by many of the websites.

This year, on the date of super moon, Earth will be within 221,765 miles of Moon. This is about 2 percent closer than average perigee distance (which is 362,570 km). The average distance of apogee is 405,410 km.

The biggest super moon of 21st century will be visible on 6th December 2052.

As with any full moon, 10th August super moon will look larger when it will be close to the horizon.

Will the Super Moon affect Earth?

There are no risk to mankind due to super moon. Only tides will be stronger than usual.

Dates for future Supermoon

September 9, 2014

September 28, 2015

November 14, 2016

January 2, 2018








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Apogee and Perigee of moon in 2014

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